Accessing IndexedDB from multiple javascript threads

Question

Overview: I am trying to avoid a race condition with accessing an IndexedDB from both a webpage and a web-worker.

Setup: Webpage tha

Answer 1

Old thread but the use of a transaction would solve the Failed Solution approach. I.e. the transaction only needs to span the check that the data in the IndexedDB hasn't change after the send and marking it as sent if there was no change. If there was a change, the transaction ends without writing.